Ice crusher



Nov. 20, 1928.

C. M. SMITH ICE CRUSHER Filed March 25. 1926 2 Sheets-Sheet 1 Nov. 20, 1928.

c. M. SMITH l ICE CRUSHER Filed Marcl 25. 192e '2 sheets-sneer 2 ysa-INTER:

Patented Nov. 20, 1928.

UNI-TED" STATES 'CHARLES M. SMITH, OF EAST PEPPEREL, MASSACHU'SETTS.

ICE CRUSHER.

application ined March 25, 192e. serial no. 97,239. A

The present invention relates to ice crushers for ice cream freezers and chiefly to those of the type designed for domestic use, although it may be applied to the larger type of freezers employed in hotels and ice cream factories.

The obj ect of my invention is to provide an-v apparatus that may be used interchangeably with the freezer can gear frame and actuatedv i by the same operating mechanism, such as a crank or pulley belted to a source of power, that is used for actuating the gears which control the movements of the freezer can and paddle. By means of this apparatus which isV detachably secured to the tub,

preferably by the same means for detachably securing the gear frame thereto, the user may quickly remove the gear frame from the tub, replace the same by the ice crusher and then prepare the broken ice for the freezing mixture, preferably a receptacle which may be an ordinary paper bag or sack, or the like, is placed in the tub below the ice crusher and when the receptacle has been filled with broken ice, the

crusher is disengaged from the tub, the

freezer can placed therein, the mixture of broken ice and salt packed around the can, the gear frame replaced on the tub and the crank or other operating mechanism unscrewed from the crusher shaft and screwed onto the shaft of the gear frame, whereupon the ice cream is made in the usual way.

vAn illustrative embodiment of my invention is shown in the drawings which accompany and form a part of this specification, in which- Figure 1 is a side elevation of a freezer embodying my invention, certain parts being .shown in section;

Fig. 2 is a Central vertical section taken on the line 2-2 of Fig. 4;

Fig. 3 is a central vertical section taken on the line 3?-3 of Fig. 1;

Fig. 4l is a plan view;

Fig. 5 is a perspective view of the usual gear frame arranged to be detachably secured to the freezer tub and actuated interchangeably by the same operating mechanism used in connection with the ice crusher.

In the particular drawings selected for more fully illustrating my invention, 10 is a freezer tub of any suitable construction provided with a plate 11 attached on the outer surface and at or near the upper end thereof, the said plate being provided with a pair of upstanding ears 12 each provided with a slot, and disposed near the upper end of said tub and diametrically-opposite the said plate 11 is a holder V13 for receiving the bolt lll, the upper end of which is provided with a locking button 15. n

The gear box 16 is provided with two laterally-eXtending arms 17, each terminating in a prong 18 arranged to take into the slots in the ears 12, respectively, and disposed oppositely to said arm 17 is an arm 19 extending laterally from the gear bon and provided with a slot 2O thriiugh which the bolt 14 projects so that by turning the button 15, the gear frame will be locked firmly in position on thetub.

No Claim described which is old and well known in the art.

In the present instance the ice crusher illustrated in Figs. 1 to f1, inclusive, consists of a receptacle 21 in the sides of which is journalled a shaft 22 which carries the drum 23 provided with icecrushing teeth 24, said teeth co-operating with the serrated plate 25. It will be understood of course that I do not limit myself to the particular form of ice crusher herein shown and described in detail. A pair of prongs 26, 26 projecting laterally from the ice crusher are constructed and arranged to take into the slots of the ears 12, 12 and on the opposite side of the crusher an arm 27'l extends laterally therefrom and is provided with a slot y28 similar in shape to the slot 2O of the gear frame.

As will be obvious the crusher is locked into positive engagement with the tub by means of the arrangement just described and that it is made for the constructionjust may readily be removed therefrom and the gear frame substituted therefor.

The operation is' as follows A receptacle such as a paper bag, for eX- ample, is placed in the tub, the ice crusher secured in position and then by means of a crank or other operating mechanism screwed to the threaded end of the shaft 22, the crusher is rotated and the receptacle filled with broken ice. The crank or other operating mechanism is then unscrewed from the threaded end of said shaft 22 and the crusher removed from the tub.

The'freezer can is then placed in the tub, thebroken ice packed laround the same and the gear frame substituted for the ice crusher and locked in position on thetub. Thesaid crank or other operating mechanism is then 10 arranged to take into said ears, respectively,

an arin extending laterally from said Crusher and provided with a slot, a bolt rotatably attached to said tub, a locking button on the ripper end of said bolt, said button projecting through the slot in Said arm, and a shaft for actuating said ice crusher.

In testimony whereof, I have hereunto subscribed iny naine this 19th day of March, 1926.

CHARLES M. SMTH. 

